diff options
Diffstat (limited to '2022/Day2/part-two.cl')
| -rw-r--r-- | 2022/Day2/part-two.cl | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/2022/Day2/part-two.cl b/2022/Day2/part-two.cl deleted file mode 100644 index 40090e2..0000000 --- a/2022/Day2/part-two.cl +++ /dev/null @@ -1,45 +0,0 @@ -(defvar *prog-input*) - -(let ((ui (read-line))) - (if (equal ui "") - (setq *prog-input* *standard-input*) - (setq *prog-input* (open ui)))) - -(let - ((cal (read-line *prog-input* NIL)) (total-score 0) - (your-rps '(#\0 #\X #\Y #\Z)) (enemy-rps '(#\0 #\A #\B #\C)) - (cy-rps 0) (ce-rps 0)) - - (loop until (or (equal cal "end") (not cal)) do - (setq ce-rps (position (char cal 0) enemy-rps)) - ;; We reuse numbers 1,2,3 to, for now, signify your strategy - (setq cy-rps (position (char cal 2) your-rps)) - - ;; Similarly to part-one.cl, if we write down the table of possible combinations - ;; (from left to right, columns are "Your strategy", "Enemy choice", "What your choice should be"): - ;; 1 1 | 3 = 1 + 2 - ;; 1 2 | 1 = 1 + 0 - ;; 1 3 | 2 = 1 + 1 - ;; ----+---------- - ;; 2 1 | 1 = 1 + 0 - ;; 2 2 | 2 = 1 + 1 - ;; 2 3 | 3 = 1 + 2 - ;; ----+---------- - ;; 3 1 | 2 = 1 + 1 - ;; 3 2 | 3 = 1 + 2 - ;; 3 3 | 1 = 1 + 0 - ;; Your choice is a rotation of the numbers 1, 2 and 3, where if your strategy is 1 (lose) - ;; you rotate once, if your strategy is 2 (draw) you rotate zero times and if it is 3 (win) - ;; you rotate two times. - (setq cy-rps (+ (mod (+ cy-rps ce-rps) 3) 1)) - - ;; Refer to part-one.cl for explanation on math - (setq total-score (+ total-score (* 3 (mod (+ (- 4 ce-rps) cy-rps) 3)) cy-rps)) - - (setq cal (read-line *prog-input* NIL))) - - (print total-score)) - -(if (not (eq *prog-input* *standard-input*)) - (close *prog-input*)) - |
